diff --git a/neo/renderer/RenderBackend.cpp b/neo/renderer/RenderBackend.cpp
index 7cece8c6..3fed4c09 100644
--- a/neo/renderer/RenderBackend.cpp
+++ b/neo/renderer/RenderBackend.cpp
@@ -6170,7 +6170,7 @@ void idRenderBackend::PostProcess( const void* data )
 		/*
 		 * The shader has three passes, chained together as follows:
 		 *
-		 *                           |input|------------------·
+		 *                           |input|------------------�
 		 *                              v                     |
 		 *                    [ SMAA*EdgeDetection ]          |
 		 *                              v                     |
@@ -6180,7 +6180,7 @@ void idRenderBackend::PostProcess( const void* data )
 		 *                              v                     |
 		 *                          |blendTex|                |
 		 *                              v                     |
-		 *                [ SMAANeighborhoodBlending ] <------·
+		 *                [ SMAANeighborhoodBlending ] <------�
 		 *                              v
 		 *                           |output|
 		*/
diff --git a/neo/renderer/RenderCommon.h b/neo/renderer/RenderCommon.h
index 0ddf7fdb..2f7b2856 100644
--- a/neo/renderer/RenderCommon.h
+++ b/neo/renderer/RenderCommon.h
@@ -1443,6 +1443,9 @@ public:
 	{
 		if( ( count + 1 ) >= nextTicCount )
 		{
+			// discard anything currently on the list
+			tr.SwapCommandBuffers( NULL, NULL, NULL, NULL, NULL, NULL );
+
 			// restore the original resolution, same as "vid_restart"
 			glConfig.nativeScreenWidth = sysWidth;
 			glConfig.nativeScreenHeight = sysHeight;
@@ -1467,6 +1470,7 @@ public:
 			}
 
 			common->UpdateScreen( false );
+			common->UpdateScreen( false );
 		}
 
 		count++;
diff --git a/neo/renderer/tr_frontend_main.cpp b/neo/renderer/tr_frontend_main.cpp
index 82a60885..1813c7e3 100644
--- a/neo/renderer/tr_frontend_main.cpp
+++ b/neo/renderer/tr_frontend_main.cpp
@@ -525,7 +525,11 @@ static void R_FindClosestEnvironmentProbes()
 
 	RenderEnvprobeLocal* nearest = viewEnvprobes[0];
 	tr.viewDef->globalProbeBounds = nearest->globalProbeBounds;
-	tr.viewDef->irradianceImage = nearest->irradianceImage;
+
+	if( !nearest->irradianceImage->IsDefaulted() )
+	{
+		tr.viewDef->irradianceImage = nearest->irradianceImage;
+	}
 
 	// form a triangle of the 3 closest probes
 	idVec3 verts[3];
@@ -566,7 +570,10 @@ static void R_FindClosestEnvironmentProbes()
 
 	for( int i = 0; i < viewEnvprobes.Num() && i < 3; i++ )
 	{
-		tr.viewDef->radianceImages[i] = viewEnvprobes[i]->radianceImage;
+		if( !viewEnvprobes[i]->radianceImage->IsDefaulted() )
+		{
+			tr.viewDef->radianceImages[i] = viewEnvprobes[i]->radianceImage;
+		}
 	}
 }
 // RB end
@@ -682,7 +689,10 @@ void R_RenderPostProcess( viewDef_t* parms )
 {
 	viewDef_t* oldView = tr.viewDef;
 
-	R_AddDrawPostProcess( parms );
+	//if( !( parms->renderView.rdflags & RDF_IRRADIANCE ) )
+	{
+		R_AddDrawPostProcess( parms );
+	}
 
 	tr.viewDef = oldView;
 }